[subresource_filter] Make website setting existence imply site activation

components/content_settings/core/browser/website_settings_registry.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/content_settings/core/browser/website_settings_registry.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
@@ skipping 147 matching lines @@
            "permission-autoblocking-data", nullptr,
            WebsiteSettingsInfo::UNSYNCABLE, WebsiteSettingsInfo::NOT_LOSSY,
            WebsiteSettingsInfo::REQUESTING_ORIGIN_ONLY_SCOPE,
            DESKTOP | PLATFORM_ANDROID,
            WebsiteSettingsInfo::INHERIT_IN_INCOGNITO);
   Register(
       CONTENT_SETTINGS_TYPE_PASSWORD_PROTECTION, "password-protection", nullptr,
       WebsiteSettingsInfo::UNSYNCABLE, WebsiteSettingsInfo::NOT_LOSSY,
       WebsiteSettingsInfo::REQUESTING_ORIGIN_ONLY_SCOPE,
       DESKTOP | PLATFORM_ANDROID, WebsiteSettingsInfo::INHERIT_IN_INCOGNITO);
-  Register(CONTENT_SETTINGS_TYPE_SUBRESOURCE_FILTER_DATA,
-           "subresource-filter-data", nullptr, WebsiteSettingsInfo::UNSYNCABLE,
-           WebsiteSettingsInfo::LOSSY,
-           WebsiteSettingsInfo::REQUESTING_ORIGIN_ONLY_SCOPE, PLATFORM_ANDROID,
-           WebsiteSettingsInfo::INHERIT_IN_INCOGNITO);
+  // Set when an origin is activated for subresource filtering and the
+  // associated UI is shown to the user. Cleared when a site is de-activated or
+  // the first URL matching the origin is removed from history.
+  Register(
+      CONTENT_SETTINGS_TYPE_SUBRESOURCE_FILTER_DATA, "subresource-filter-data",
+      nullptr, WebsiteSettingsInfo::UNSYNCABLE, WebsiteSettingsInfo::NOT_LOSSY,
+      WebsiteSettingsInfo::REQUESTING_ORIGIN_ONLY_SCOPE,
+      DESKTOP | PLATFORM_ANDROID, WebsiteSettingsInfo::INHERIT_IN_INCOGNITO);
 }
 
 }  // namespace content_settings